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Atomistry » Platinum » Chemical Properties » Platinum Triselenide | ||
Atomistry » Platinum » Chemical Properties » Platinum Triselenide » |
Platinum Triselenide, PtSe3
Platinum Triselenide, PtSe3, has been obtained as a black, flocculent precipitate by reduction with formaldehyde of a solution of an alkali chlor-platinate in the presence of a selenite and an excess of alkali.
The reaction may be represented as follows: K2PtCl6 + 3SeO2 + 8HCHO + 12KOH = PtSe3 + 6KCl + 8HCOOK + 10H2O. Upon heating to dull redness in a current of carbon dioxide, platinum triselenide is converted into the diselenide, PtSe2, which is left as a greyish black powder. |
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